Table board supported sewing machine



. April 23, 1946. F. GEGAUF TABLE BOARDSUPPORTED SEWING MACHINE FiledSept.- 10, 1945 Eye 750A Patented Apr. 23, 1946 UNHTED STAZT FritzGegaufs This invention relatesto table board supported sewing machines.

In constructing sewing machines-which durin use must be placed on atable and may thus be termed table board supported sewing machines thefull duration of use with simple appropriate means, according to thisinvention, in the base of the machine at least one angular fasteningmeans is arranged so as to be displaceable and rotatable relative to aguide by means of a shank, said fastening means being completelycollapsible into the interior of the base during disuse by virtue of thearrangement of a recess and can be pulled out of the base, when themachine is used, and turned relative to the base for the purpose ofbeing moved into a position appropriate for overlying the table boardfor securing the machine in position on said table.

Due to the fact that the fastening means finds room in thecorrespondingly recessed base of the machine, the fastening device onbeing restored is altogether disguised so as not to be disturbing in anyway, when restored.

An embodiment of the invention is illustrated, by way of example only,in the accompanying drawing, in which Fig. 1 shows an elevation of asewing machine mounted on a table according to the invention;

Fig. 2 is a corresponding face view partly in section on a larger scale;and

Figs. 3 and 4 show the fastening device to be restored in the base ofthe machine in a horizon tal and a vertical section respectively.

The numeral I designates the rectangular base of the readily portablesewing machine having an unobstructed arm 2 including the feeder and thelooper; 3 denotes the overhung arm accommodating the needle bar 4 andthe presser foot 5. The base I is recessed in part at the bottom so thatoccasionally edge ribs and intermediary ribs are left. At two solidmarginal portions on one longitudinal edge of the base I a horizontal.bore 6 is provided at some distance from each of the two narrow edges soas to extend parallel thereto,

E P ENr TABLE BOARD SUPPORTED SEWING. Y

Fritz Gegaufls teckborn, Switzerland, assignor'to Sohne Steckborn,Switzerland 7 Application September 10,- Serial No. 501,887: y InSwitzerland September 12,1942

4 Claims. ((1248-25) f 3 j cranked portions;

" Aktiengesellsohafti i j' which bores serve ashousings andguidesi forthe shank I of a fastening member8 ,havingseveral The shank 1 of'eachfastem'ng memberisprovided with-a longitudinal bore beginningatthefree shank end and, accommodating atension spring Q'W-hifih is connectedatone of its endswith theshank .1 by meansof a cross-pin l and at theother with a pin. .fixed to the base I. P'Ihe tension spring 9tBIIdS-iOPlllllthG fastening-member into the base I. The fasteningmember 8 carries on its terminal arm extending parallel to the shank I aclamping screw I2. A collar 1' on the shank I prevents the shank frombeing excessively pulled outwardly inthe bore 6 and the machine fromcreeping in the course of the sewing operation.

Each of the two fastening members 8 finds room, when unused, for the endportion thereof extending laterally away from the shank I in a recess I3provided in the base I and being open, that is, accessible from theunderside of the base I as well as from the corresponding longitudinaledge of the latter (Fig. 3). In Fig. l the two fastening members 8 areshown in chain-dotted lines in position of disuse (Fig. 3). For puttingthe individual fastening member 8 into use the latter is grasped by handfrom the upper side of the base I and pulled out of the base to therequired extent against the influence of the spring 9 for being broughtinto a position adapting it to overlie the table board. For the samepurpose the fastening member is further turned about the shaft 1 thenserving as axis of rotation for said member, so that its part projectinglaterally from the shank I is moved into vertical position as shown inFigs. 1 and 2. In Fig. 1 the two direc tions of rotation entering intothe question for the manipulation of the fastening member 8 areindicated by arrows.

The fastening devices 8 are then pushed into a position so as to engageunder the table board neither in thickness of the base nor in any otherdimensions of the sewing machine as will be readily seen. The number offastening members to be provided for the base of the sewing machine canbe varied, under certain circumstances a single fastening member maysufiice.

I claim:

1. In attachment means for table supported sewing machines, a machinebase, a laterally opening guide bore in said base, a bracket having ahook-shaped portion and a shank extending into said guide bore, thehook-shaped portion being adapted to extend over and under a table.edge, said shank being turnable in said, recess H aboutits axis, saidshank being hollow and open at its inner end, a spring secured to acentral. r portion of the base and connected to the shank at a pointwithin the shank removed from its a inner end to urge the bracket towardthe base,

and a recess extending laterally of the outer end 7 of the guide borefor receiving the hook-shaped portion of the bracket when turnedlaterally when not in use. 7 7 a 2. Fastening means for securing atablemodel sewing machine and the like to the edge of a supporting tablecomprising, a machine base plate provided with a recess in its'undersideand having a guide bore extending laterally from the recess and openingthrough a side surface of the base, said base also having a recessextending laterally iromthe outer end of the bore, a

yoke having a pair of arms, one of which arms extends into said guidebore and is slidable therein inwardly and outwardly and is alsorotatable therein, and a tension spring in the recess in the undersideof the base and secured to said base and to said one arm of the yoke soas to tend to draw said arm inwardly in the guide bore, the other arm ofsaid yoke having means for ,clamping against the underside of a tableedge,

said other arm and the clamping means being accommodated in the recessextending laterally for the outer end of the guide bore when the yokepring. 15

is turned sidewise and is drawn inwardly by said 3.- Fastening meansaccording to claim 2, and in which the one arm of the yoke is providedwith a longitudinal bore extending from its end within the recess in themachine base, and in

